US6620889B1 - Powdery, crosslinked absorbent polymers, method for the production thereof, and their use - Google Patents

Powdery, crosslinked absorbent polymers, method for the production thereof, and their use Download PDF

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Publication number
US6620889B1
US6620889B1 US09/914,466 US91446601A US6620889B1 US 6620889 B1 US6620889 B1 US 6620889B1 US 91446601 A US91446601 A US 91446601A US 6620889 B1 US6620889 B1 US 6620889B1
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United States
Prior art keywords
polymer product
polymer
product according
water
secondary crosslinking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US09/914,466
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English (en)
Inventor
Richard Mertens
Jörg Harren
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Evonik Operations GmbH
Original Assignee
Stockhausen GmbH and Co KG
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7899785&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US6620889(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Stockhausen GmbH and Co KG filed Critical Stockhausen GmbH and Co KG
Assigned to STOCKHAUSEN GMBH & CO. KG reassignment STOCKHAUSEN GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HARREN, JOERG, MERTENS, RICHARD
Priority to US10/455,394 priority Critical patent/US7179862B2/en
Application granted granted Critical
Publication of US6620889B1 publication Critical patent/US6620889B1/en
Priority to US11/673,137 priority patent/US8445596B2/en
Assigned to STOCKHAUSEN GMBH reassignment STOCKHAUSEN GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: STOCKHAUSEN VERWALTUNGSGESELLSCHAFT MBH
Assigned to EVONIK STOCKHAUSEN GMBH reassignment EVONIK STOCKHAUSEN GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: STOCKHAUSEN GMBH
Assigned to STOCKHAUSEN VERWALTUNGSGESELLSCHAFT MBH reassignment STOCKHAUSEN VERWALTUNGSGESELLSCHAFT MBH MERGER (SEE DOCUMENT FOR DETAILS). Assignors: STOCKHAUSEN GMBH & CO. KG
Assigned to EVONIK DEGUSSA GMBH reassignment EVONIK DEGUSSA GMBH MERGER (SEE DOCUMENT FOR DETAILS). Assignors: EVONIK STOCKHAUSEN GMBH
Assigned to EVONIK OPERATIONS GMBH reassignment EVONIK OPERATIONS GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: EVONIK DEGUSSA GMBH
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
    • C08J3/245—Differential crosslinking of one polymer with one crosslinking type, e.g. surface crosslinking
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/48—Surfactants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/10—Esters
    • C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
    • C08F222/102—Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/14—Water soluble or water swellable polymers, e.g. aqueous gels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2312/00—Crosslinking

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Graft Or Block Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
US09/914,466 1999-03-05 2000-02-26 Powdery, crosslinked absorbent polymers, method for the production thereof, and their use Expired - Lifetime US6620889B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/455,394 US7179862B2 (en) 1999-03-05 2003-06-06 Powdery, cross-linked absorbent polymers method for the production thereof and their use
US11/673,137 US8445596B2 (en) 1999-03-05 2007-02-09 Powdery, cross-linked absorbent polymers, method for the production thereof, and their use

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19909653A DE19909653A1 (de) 1999-03-05 1999-03-05 Pulverförmige, vernetzte, wässrige Flüssigkeiten sowie Blut absorbierende Polymere, Verfahren zu ihrer Herstellung und ihre Verwendung
DE19909653 1999-03-05
PCT/EP2000/001609 WO2000053664A1 (fr) 1999-03-05 2000-02-26 Polymeres poudreux, reticules, a pouvoir absorbant, leur procede de production et leur utilisation

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/001609 A-371-Of-International WO2000053664A1 (fr) 1999-03-05 2000-02-26 Polymeres poudreux, reticules, a pouvoir absorbant, leur procede de production et leur utilisation

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/455,394 Continuation US7179862B2 (en) 1999-03-05 2003-06-06 Powdery, cross-linked absorbent polymers method for the production thereof and their use

Publications (1)

Publication Number Publication Date
US6620889B1 true US6620889B1 (en) 2003-09-16

Family

ID=7899785

Family Applications (3)

Application Number Title Priority Date Filing Date
US09/914,466 Expired - Lifetime US6620889B1 (en) 1999-03-05 2000-02-26 Powdery, crosslinked absorbent polymers, method for the production thereof, and their use
US10/455,394 Expired - Fee Related US7179862B2 (en) 1999-03-05 2003-06-06 Powdery, cross-linked absorbent polymers method for the production thereof and their use
US11/673,137 Expired - Fee Related US8445596B2 (en) 1999-03-05 2007-02-09 Powdery, cross-linked absorbent polymers, method for the production thereof, and their use

Family Applications After (2)

Application Number Title Priority Date Filing Date
US10/455,394 Expired - Fee Related US7179862B2 (en) 1999-03-05 2003-06-06 Powdery, cross-linked absorbent polymers method for the production thereof and their use
US11/673,137 Expired - Fee Related US8445596B2 (en) 1999-03-05 2007-02-09 Powdery, cross-linked absorbent polymers, method for the production thereof, and their use

Country Status (15)

Country Link
US (3) US6620889B1 (fr)
EP (1) EP1169372B2 (fr)
JP (1) JP5342726B2 (fr)
KR (3) KR20060087615A (fr)
CN (2) CN1200961C (fr)
AT (1) ATE239049T1 (fr)
AU (1) AU760748B2 (fr)
BR (1) BR0008737B1 (fr)
CA (1) CA2362451C (fr)
CZ (1) CZ20013129A3 (fr)
DE (2) DE19909653A1 (fr)
PL (1) PL350513A1 (fr)
RU (1) RU2243238C2 (fr)
TW (2) TWI251004B (fr)
WO (1) WO2000053664A1 (fr)

Cited By (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020165288A1 (en) * 2000-12-29 2002-11-07 Basf Aktiengesellschaft Absorbent compositions
US20040181031A1 (en) * 2003-03-14 2004-09-16 Nippon Shokubai Co., Ltd. Surface crosslinking treatment method of water-absorbing resin powder
US20040236295A1 (en) * 2000-10-25 2004-11-25 Synergistic Ventures, Inc. Absorbent products, irrigation, erosion control, and root growth control
US20050070671A1 (en) * 2003-09-19 2005-03-31 Kazushi Torii Water-absorbent resin having treated surface and process for producing the same
WO2005080479A1 (fr) * 2004-02-24 2005-09-01 Basf Aktiengesellschaft Procede pour la post-reticulation de polymeres hydroabsorbants
US20050288182A1 (en) * 2004-06-18 2005-12-29 Kazushi Torii Water absorbent resin composition and production method thereof
US20060029782A1 (en) * 2002-10-25 2006-02-09 Jorg Harren Absorbent polymer structure with improved retention capacity and permeability
US20060073969A1 (en) * 2003-02-10 2006-04-06 Kazushi Torii Vater-absorbent resin composition and its production process
US20060173097A1 (en) * 2003-11-12 2006-08-03 Iqbal Ahmed Superabsorbent polymer having delayed free water absorption
US20060204755A1 (en) * 2003-02-10 2006-09-14 Kazushi Torii Walter-absorbing agent
US20060212011A1 (en) * 2003-04-03 2006-09-21 Andreas Popp Mixtures of polyalkoxylated trimethylolpropane (meth) acrylate
US7179862B2 (en) * 1999-03-05 2007-02-20 Stockhausen Gmbh Powdery, cross-linked absorbent polymers method for the production thereof and their use
US20070066947A1 (en) * 2003-10-31 2007-03-22 Basf Aktiengesellschaft Hydrogel capable of absorbing blood and/or body fluids
US20070106013A1 (en) * 2003-06-24 2007-05-10 Yoshifumi Adachi Water absorbent resin composition and production method thereof
US20070123658A1 (en) * 2003-09-19 2007-05-31 Kazushi Torii Water absorbent and producing method of same
WO2007072969A1 (fr) 2005-12-22 2007-06-28 Nippon Shokubai Co., Ltd. Composition de resine absorbant l’eau, son procede de fabrication et article absorbant
US20080032888A1 (en) * 2004-05-07 2008-02-07 Masatoshi Nakamura Water Absorbing Agent and Production Method Thereof
US20080281049A1 (en) * 2005-12-05 2008-11-13 Basf Se Process for Preparing Water-Absorbing Polymers with High Absorption Capacity and High Permeability
US20090012486A1 (en) * 2005-12-28 2009-01-08 Basf Se Process for Production of a Water-Absorbing Material
US20090008604A1 (en) * 2005-04-06 2009-01-08 Nippon Shokubai Co., Ltd. Particulate Water Absorbing Agent, Water-Absorbent Core and Absorbing Article
US20090209683A1 (en) * 2002-10-25 2009-08-20 Evonik Stockhausen Gmbh Two-step mixing process for producing an absorbent polymer
US20090227741A1 (en) * 2006-04-21 2009-09-10 Mirko Walden Water-absorbing polymer structure having improved permeability and absorption under pressure
US20090239071A1 (en) * 2006-07-19 2009-09-24 Uwe Stueven Method for Producing Water-Absorbent Polymer Particles with a Higher Permeability by Polymerising Droplets of a Monomer Solution
WO2009130915A1 (fr) 2008-04-25 2009-10-29 株式会社日本触媒 Résine de (sel) d'acide polyacrylique apte à absorber de l'eau et son procédé de fabrication
US20090318885A1 (en) * 2005-04-12 2009-12-24 Nippon Shokubai Co., Ltd. Particulate Water Absorbing Agent Including Polyacrylic Acid (Polyacrylate) Based Water Absorbing Resin as a Principal Component, Method for Production Thereof, Water-Absorbent Core and Absorbing Article in Which the Particulate Water Absorbing Agent is Used
US20100036004A1 (en) * 2007-02-09 2010-02-11 Jorg Harren Water-absorbing polymer structure with a high ammonia-binding capacity
US20100035757A1 (en) * 2005-11-18 2010-02-11 Franck Furno Deodorizing super-absorbent composition
US20100041550A1 (en) * 2007-01-29 2010-02-18 Basf Se A German Corporation Method for Producing White and Color-Stable Water-Absorbing Polymer Particles Having High Absorbency and High Saline Flow Conductivity
US20100057027A1 (en) * 2006-02-28 2010-03-04 Franck Furno Biodegradable superabsorbent polymer composition with good absorption and retention properties
US20100068520A1 (en) * 2006-07-19 2010-03-18 Basf Se Method for Producing Water-Absorbent Polymer Particles with a Higher Permeability by Polymerising Droplets of a Monomer Solution
WO2010032694A1 (fr) 2008-09-16 2010-03-25 株式会社日本触媒 Procédé de fabrication d’une résine absorbant l’eau et procédé d’amélioration de la perméabilité aux liquides
US20100099799A1 (en) * 2008-10-08 2010-04-22 Daniel Fricker Process for the production of a superabsorbent polymer
US20100105809A1 (en) * 2008-10-08 2010-04-29 Daniel Fricker Process for the production of a superabsorbent polymer
US20100105808A1 (en) * 2008-10-08 2010-04-29 Daniel Fricker Continuous process for the production of a superabsorbent polymer
US20100130950A1 (en) * 2007-05-22 2010-05-27 Harren Joerg Process for gentle mixing and coating of superabsorbers
WO2010090324A1 (fr) 2009-02-06 2010-08-12 株式会社日本触媒 Résine absorbant l'eau de type (sel d') acide polyacrylique et son procédé de fabrication
US20100209379A1 (en) * 2007-09-24 2010-08-19 Franck Furno Superabsorbent composition with tannins for odor control
US20100227982A1 (en) * 2009-03-03 2010-09-09 Fuji Xerox Co., Ltd. Ink receiving particles, method for producing the same, and curable resin dispersion composition
US20100261604A1 (en) * 2007-12-19 2010-10-14 Norbert Herfert Process for Producing Surface Crosslinked Superabsorbents
US20110009272A1 (en) * 2008-03-05 2011-01-13 Laurent Wattebled Superabsorbent composition with metal salicylate for odor control
US20110042612A1 (en) * 2007-01-29 2011-02-24 Ulrich Riegel Method for Producing White and Color-Stable Water-Absorbing Polymer Particles Having High Absorbency and High Saline Flow Conductivity
WO2011024972A1 (fr) 2009-08-27 2011-03-03 株式会社日本触媒 Résine d'acide polyacrylique (sel) absorbant l'eau et procédé de fabrication de celle-ci
WO2011034146A1 (fr) 2009-09-16 2011-03-24 株式会社日本触媒 Procédé de production d'une poudre de résine absorbant l'eau
WO2011040472A1 (fr) 2009-09-29 2011-04-07 株式会社日本触媒 Absorbant particulaire d'eau et son procédé de fabrication
WO2011090129A1 (fr) 2010-01-20 2011-07-28 株式会社日本触媒 Procédé de production d'une résine absorbant l'eau
WO2011090130A1 (fr) 2010-01-20 2011-07-28 株式会社日本触媒 Procédé de production d'une résine absorbant l'eau
WO2011099586A1 (fr) 2010-02-10 2011-08-18 株式会社日本触媒 Procédé de production d'une poudre de résine absorbant l'eau
WO2011111856A1 (fr) 2010-03-12 2011-09-15 株式会社日本触媒 Procédé de fabrication d'une résine absorbant l'eau
WO2011115216A1 (fr) 2010-03-17 2011-09-22 株式会社日本触媒 Procédé de production d'une résine absorbante
WO2011126079A1 (fr) 2010-04-07 2011-10-13 株式会社日本触媒 Procédé de production d'une poudre de résine d'acide polyacrylique (sel) absorbant l'eau et poudre de résine d'acide polyacrylique (sel) absorbant l'eau
WO2011136238A1 (fr) 2010-04-26 2011-11-03 株式会社日本触媒 Sel de polyacrylate, résine hydro-absorbante à base de sel de polyacrylate et procédé pour la fabriquer
WO2011136237A1 (fr) 2010-04-26 2011-11-03 株式会社日本触媒 Poly(acide acrylique) ou sel de celui-ci, résine absorbant l'eau à base de poly(acide acrylique) ou de sel de celui-ci et son procédé de production
US8071202B2 (en) 2005-04-22 2011-12-06 Evonik Stockhausen Gmbh Water-absorbing polymer structures with improved absorption properties
US8198385B2 (en) 2010-03-30 2012-06-12 Evonik Stockhausen Gmbh Process for the production of a superabsorbent polymer
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WO2012143215A1 (fr) 2011-04-21 2012-10-26 Evonik Stockhausen Llc Composition particulaire de polymère superabsorbant aux performances améliorées
WO2012144595A1 (fr) 2011-04-20 2012-10-26 株式会社日本触媒 Procédé et appareil pour produire une résine absorbant de l'eau de type (sel) de poly(acide acrylique)
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WO2013144026A1 (fr) 2012-03-30 2013-10-03 Basf Se Superabsorbant résistant à la décoloration
WO2014021432A1 (fr) 2012-08-01 2014-02-06 株式会社日本触媒 Procédé de production de résine absorbant l'eau à base de (sel) d'acide polyacrylique
US8859701B2 (en) 2010-10-29 2014-10-14 Evonik Degussa Gmbh Process for producing improved absorbent polymers by means of cryogenic grinding
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WO2015030130A1 (fr) 2013-08-28 2015-03-05 株式会社日本触媒 Dispositif de pulvérisation de gel, procédé de fabrication de poudre de polymère superabsorbant de poly(acide acrylique) (polyacrylate) et poudre de polymère superabsorbant
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US9302248B2 (en) 2013-04-10 2016-04-05 Evonik Corporation Particulate superabsorbent polymer composition having improved stability
US9375507B2 (en) 2013-04-10 2016-06-28 Evonik Corporation Particulate superabsorbent polymer composition having improved stability
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US9555148B2 (en) 2011-11-17 2017-01-31 Evonik Degussa Gmbh Superabsorbing polymers with rapid absorption properties and method for producing the same
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US10189008B2 (en) 2012-10-24 2019-01-29 Evonik Degussa Gmbh Odor and color stable water-absorbing composition
US10287379B2 (en) 2014-03-05 2019-05-14 Evonik Degussa Gmbh Superabsorbent polymers with improved odor control capacity and process for the production thereof
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US10532341B2 (en) 2015-07-01 2020-01-14 Nippon Shokubai Co., Ltd. Particulate water absorbing agent
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DE102019216910A1 (de) 2018-11-12 2020-05-14 Basf Se Verfahren zur Oberflächennachvernetzung von Superabsorbern
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US20030207997A1 (en) 2003-11-06
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CA2362451C (fr) 2009-09-01
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ATE239049T1 (de) 2003-05-15
CN1683442A (zh) 2005-10-19
CZ20013129A3 (cs) 2002-01-16
BR0008737A (pt) 2002-01-02
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US20070129495A1 (en) 2007-06-07
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US8445596B2 (en) 2013-05-21
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US7179862B2 (en) 2007-02-20
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